EP 0140246 A1 19850508 - A thin film electroluminescent display device.
Title (en)
A thin film electroluminescent display device.
Title (de)
Dünnschicht-Elektrolumineszenzanzeige.
Title (fr)
Dispositif d'affichage électroluminescent à film mince.
Publication
Application
Priority
US 54022383 A 19831011
Abstract (en)
A thin film electroluminescent display device comprising a transparent electrode layer, a segmented electrode layer, an electroluminescent phosphor layer between the electrode layers, and an improved dark field material disposed as a layer between the phosphor and segmented electrode layers. The improved dark field layer is of a composition of a dielectric material, such as the preferred magnesium oxide, and a noble metal, which in the preferred version is gold. These materials comprising the dark field composition may be co-evaporated by an electron beam evaporation or other suitable deposition technique. The composition of dark field material provides for contrast enhancement is non-toxic, and is readily analyzable.
IPC 1-7
IPC 8 full level
H05B 33/22 (2006.01)
CPC (source: EP)
H05B 33/22 (2013.01)
Citation (search report)
- GB 2039146 A 19800730 - GTE SYLVANIA INC
- GB 2109161 A 19830525 - SHARP KK
- DE 3114199 A1 19820325 - LOHJA AB OY [FI]
- US 4312915 A 19820126 - FAN JOHN C C
- US 3560784 A 19710202 - STEELE GORDON N, et al
- Thin Solid Films, Vol. 89, No. 2, March 12, 1982, Elsevier Sequoia, Netherlands S. BERTHIER "Optical Properties of Au-MgO Cermet Thin Films: Percolation Threshold and Grain Size Effect" pages 213-220 * totality *
- Applied Physics Letters, Vol. 29, No. 8, October 15, 1976, Massachusetts, USA FAN. ZAVRACKY "Selective Black Absorbers using MgO/Au Cermet Films" pages 478-480 * totality *
Designated contracting state (EPC)
BE DE FR GB NL
DOCDB simple family (publication)
EP 0140246 A1 19850508; EP 0140246 B1 19870916; CA 1243762 A 19881025; DE 3466342 D1 19871022
DOCDB simple family (application)
EP 84112241 A 19841011; CA 464835 A 19841005; DE 3466342 T 19841011